Cadey is coffee
<Cadey> Hello! Thank you for visiting my website. You seem to be using an ad-blocker. I understand why you do this, but I'd really appreciate if it you would turn it off for my website. These ads help pay for running the website and are done by Ethical Ads. I do not receive detailed analytics on the ads and from what I understand neither does Ethical Ads. If you don't want to disable your ad blocker, please consider donating on Patreon or sending some extra cash to xeiaso.eth or 0xeA223Ca8968Ca59e0Bc79Ba331c2F6f636A3fB82. It helps fund the website's hosting bills and pay for the expensive technical editor that I use for my longer articles. Thanks and be well!

IRCv3.2 CHGHOST Extension

Read time in minutes: 2

The chghost client capability allows a server to directly inform clients about a host or user change without having to send a fake quit and join. This capability MUST be referred to as chghost at capability negotiation time.

When enabled, clients will get the CHGHOST message to designate the host of a user changing for clients on common channels with them.

The CHGHOST message is one of the following:

:nick!user@host CHGHOST user

This message represents that the user identified by nick!user@host has changed host to another value. The first parameter is the user of the client. The second parameter is the new host the client is using.

On irc daemons with support for changing the user portion of a client, the second form may appear:

:nick!user@host CHGHOST newuser host

If specified, a client may also have their user and host changed at the same time:

:nick!user@host CHGHOST newuser

This second and third form should only be seen on IRC daemons that support changing the user field of a user.

In order to take full advantage of the CHGHOST message, clients must be modified to support it. The proper way to do so is this:

  1. Enable the chghost capability at capability negotiation time during the login handshake.

  2. Update the user and host portions of data structures and process channel users as appropriate.


In this example, tim!~toolshed@backyard gets their username changed to b and their hostname changed to ckyard:

:tim!~toolshed@backyard CHGHOST b ckyard

In this example, tim!b@ckyard gets their username changed to ~toolshed and their hostname changed to backyard:

:tim!b@ckyard CHGHOST ~toolshed backyard


A previous version of this specification did not include any examples, which made it unclear as to whether the de-facto ~ prefix should be included on CHGHOST messages. The new examples make clear that it should be included.

This article was posted on M10 04 2013. Facts and circumstances may have changed since publication. Please contact me before jumping to conclusions if something seems wrong or unclear.

This post was not WebMentioned yet. You could be the first!

The art for Mara was drawn by Selicre.

The art for Cadey was drawn by ArtZora Studios.

Some of the art for Aoi was drawn by @Sandra_Thomas01.